Mercurial > hg > Members > ryokka > HoareLogic
changeset 44:5a3c9d087c7c
dead end
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
---|---|
date | Sun, 15 Dec 2019 15:57:07 +0900 |
parents | 8813f26da3b7 |
children | de8449321356 |
files | whileTestGears.agda |
diffstat | 1 files changed, 28 insertions(+), 26 deletions(-) [+] |
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line diff
--- a/whileTestGears.agda Sun Dec 15 12:29:13 2019 +0900 +++ b/whileTestGears.agda Sun Dec 15 15:57:07 2019 +0900 @@ -10,35 +10,35 @@ open import utilities open _/\_ -record Env : Set (succ Zero) where +record Env (Cxt : Set) : Set (succ Zero) where field varn : ℕ vari : ℕ - cx : Set -open Env + cx : Cxt +open Env -whileTest : {l : Level} {t : Set l} (c : Set ) → (c10 : ℕ) → (Code : Env → t) → t -whileTest c c10 next = next (record {varn = c10 ; vari = 0 ; cx = c} ) +whileTest : {l : Level} {t : Set l} {Cxt : Set} (c : Cxt ) → (c10 : ℕ) → (Code : Env Cxt → t) → t +whileTest c c10 next = next (record {varn = c10 ; vari = 0 ; cx = c } ) {-# TERMINATING #-} -whileLoop : {l : Level} {t : Set l} → Env → (Code : Env → t) → t +whileLoop : {l : Level} {t : Set l} {Cxt : Set} {c : Cxt } → Env Cxt → (Code : Env Cxt → t) → t whileLoop env next with lt 0 (varn env) whileLoop env next | false = next env whileLoop env next | true = whileLoop (record env {varn = (varn env) - 1 ; vari = (vari env) + 1}) next -test1 : (c : Set ) → Env +test1 : {Cxt : Set } → (c : Cxt) → Env Cxt test1 c = whileTest c 10 (λ env → whileLoop env (λ env1 → env1 )) -proof1 : (c : Set ) → whileTest c 10 (λ env → whileLoop env (λ e → (vari e) ≡ 10 )) +proof1 : {Cxt : Set } (c : Cxt ) → whileTest c 10 (λ env → whileLoop env (λ e → (vari e) ≡ 10 )) proof1 c = refl -- ↓PostCondition -whileTest' : {l : Level} {t : Set l} → {c : Set} → {c10 : ℕ } → (Code : (env : Env ) → ((vari env) ≡ 0) /\ ((varn env) ≡ c10) → t) → t -whileTest' {_} {_} {c} {c10} next = next env proof2 +whileTest' : {l : Level} {t : Set l} {Cxt : Set} → {c : Cxt} → {c10 : ℕ } → (Code : (env : Env Cxt ) → ((vari env) ≡ 0) /\ ((varn env) ≡ c10) → t) → t +whileTest' {_} {_} {Cxt} {c} {c10} next = next env proof2 where - env : Env + env : Env Cxt env = record {vari = 0 ; varn = c10 ; cx = c } proof2 : ((vari env) ≡ 0) /\ ((varn env) ≡ c10) -- PostCondition proof2 = record {pi1 = refl ; pi2 = refl} @@ -48,7 +48,7 @@ {-# TERMINATING #-} -- ↓PreCondition(Invaliant) -whileLoop' : {l : Level} {t : Set l} → (env : Env ) → {c10 : ℕ } → ((varn env) + (vari env) ≡ c10) → (Code : Env → t) → t +whileLoop' : {l : Level} {t : Set l} {Cxt : Set} {c : Cxt } → (env : Env Cxt ) → {c10 : ℕ } → ((varn env) + (vari env) ≡ c10) → (Code : Env Cxt → t) → t whileLoop' env proof next with ( suc zero ≤? (varn env) ) whileLoop' env proof next | no p = next env whileLoop' env {c10} proof next | yes p = whileLoop' env1 (proof3 p ) next @@ -76,8 +76,8 @@ -- ∎ -- Condition to Invaliant -conversion1 : {l : Level} {t : Set l } → (env : Env ) → {c10 : ℕ } → ((vari env) ≡ 0) /\ ((varn env) ≡ c10) - → (Code : (env1 : Env ) → (varn env1 + vari env1 ≡ c10) → t) → t +conversion1 : {l : Level} {t : Set l } {Cxt : Set} {c : Cxt } → (env : Env Cxt ) → {c10 : ℕ } → ((vari env) ≡ 0) /\ ((varn env) ≡ c10) + → (Code : (env1 : Env Cxt ) → (varn env1 + vari env1 ≡ c10) → t) → t conversion1 env {c10} p1 next = next env proof4 where proof4 : varn env + vari env ≡ c10 @@ -93,23 +93,25 @@ ∎ -proofGears : {c10 : ℕ } → Set → Set -proofGears {c10} c = whileTest' {_} {_} {c} {c10} (λ n p1 → conversion1 n p1 (λ n1 p2 → whileLoop' n1 p2 (λ n2 → ( vari n2 ≡ c10 )))) +proofGears : {c10 : ℕ } → { Cxt : Set } → (c : Cxt ) → Set +proofGears {c10} c = whileTest' {_} {_} {_} {c} {c10} (λ n p1 → conversion1 n p1 (λ n1 p2 → whileLoop' n1 p2 (λ n2 → ( vari n2 ≡ c10 )))) -data whileTestState (c10 : ℕ ) (env : Env ) : Set where +record Context (e : Set ) : Set (succ Zero) + +data whileTestState {Cxt : Set } (c10 : ℕ ) (env : Env Cxt ) : Set where error : whileTestState c10 env state1 : ((vari env) ≡ 0) /\ ((varn env) ≡ c10) → whileTestState c10 env state2 : (varn env + vari env ≡ c10) → whileTestState c10 env finstate : ((vari env) ≡ c10 ) → whileTestState c10 env -- --- openended Env c <=> Context +-- openended Env Cxt c <=> Context -- -record Context : Set (succ Zero) where +record Context e where field c10 : ℕ - whileDG : Env + whileDG : Env e whileCond : whileTestState c10 whileDG open Context @@ -121,7 +123,7 @@ -- transparency of condition -- -whileCondP : Env → Set +whileCondP : Env {!!} → Set whileCondP env = varn env > 0 whileDec : (cxt : Context) → Dec (whileCondP (whileDG cxt)) @@ -141,7 +143,7 @@ proof cxt = {!!} {-# TERMINATING #-} -whileLoopStep : {l : Level} {t : Set l} → Env → (next : (e : Env ) → t) (exit : (e : Env) → t) → t +whileLoopStep : {l : Level} {t : Set l} → Env {!!} → (next : (e : Env {!!} ) → t) (exit : (e : Env {!!} ) → t) → t whileLoopStep env next exit with <-cmp 0 (varn env) whileLoopStep env next exit | tri≈ _ eq _ = exit env whileLoopStep env next exit | tri< gt ¬eq _ = next record env {varn = (varn env) - 1 ; vari = (vari env) + 1} @@ -149,7 +151,7 @@ whileTestProof : {l : Level} {t : Set l} → Context → (Code : (cxt : Context ) → ¬ (vari (whileDG cxt) ≡ varn (whileDG cxt) ) → t) → t whileTestProof cxt next = next record cxt { whileDG = out ; whileCond = init } i!=n where - out : Env + out : Env {!!} out = whileTest {!!} (c10 cxt) ( λ e → e ) init : whileTestState (c10 cxt) out init = state1 record { pi1 = refl ; pi2 = refl } @@ -162,9 +164,9 @@ whileLoopProof cxt i!=n next exit = whileLoopStep (whileDG cxt) ( λ env → next record cxt { whileDG = env ; whileCond = {!!} } {!!} ) ( λ env → exit record cxt { whileDG = env ; whileCond = exitCond env {!!} } {!!} ) where - proof5 : (e : Env ) → varn e + vari e ≡ c10 cxt → 0 ≡ varn e → vari e ≡ c10 cxt + proof5 : (e : Env {!!} ) → varn e + vari e ≡ c10 cxt → 0 ≡ varn e → vari e ≡ c10 cxt proof5 record { varn = .0 ; vari = vari } refl refl = refl - exitCond : (e : Env ) → 0 ≡ varn e → whileTestState (c10 cxt) e + exitCond : (e : Env {!!} ) → 0 ≡ varn e → whileTestState (c10 cxt) e exitCond nenv eq1 with whileCond cxt | inspect whileDG cxt ... | state2 cond | record { eq = eq2 } = finstate ( proof5 nenv {!!} eq1 ) ... | _ | _ = error @@ -172,7 +174,7 @@ whileConvProof : {l : Level} {t : Set l} → (cxt : Context ) → ¬ (vari (whileDG cxt) ≡ varn (whileDG cxt)) → ((cxt : Context ) → ¬ (vari (whileDG cxt) ≡ varn (whileDG cxt)) → t) → t whileConvProof cxt i!=n next = next record cxt { whileCond = postCond } i!=n where - proof4 : (e : Env ) → (vari e ≡ 0) /\ (varn e ≡ c10 cxt) → varn e + vari e ≡ c10 cxt + proof4 : (e : Env {!!} ) → (vari e ≡ 0) /\ (varn e ≡ c10 cxt) → varn e + vari e ≡ c10 cxt proof4 env p1 = let open ≡-Reasoning in begin varn env + vari env